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Rose → aphid → ladybird. In this food chain, the ladybird is the secondary consumer.

Food Webs

This KS2 Science quiz is all about food webs. Food webs, also called food chains, show us how energy is transferred from one organism to another by eating, or consuming.

Food webs are cycles of what eats what. All living things, plants and animals, need energy in order to survive. Plants (like grass for example) create energy from sunlight by photosynthesis. This is then transferred to herbivores (like rabbits) which eat the plants. Predators (such as foxes) then eat the herbivores and the energy is transferred once more. These transfers of energy are what we call food chains.

What type of food do different organisms need and where do they find it? What type of food supports all life on Earth? What are the differences between producers and consumers. Test your knowledge of food chains and food webs with this quiz.

In a food web, secondary consumers eat the primary consumers, or herbivores. Which one of these is a secondary consumer?

Fox

Caterpillar

Rabbit

Cow

Caterpillars, rabbits and cows are all herbivores and so primary consumers

What must be at the beginning of every food chain?

A herbivore

A green plant

A decomposer

An omnivore

Plants always come at the beginning of a food chain, which is why they are known as producers - only plants can turn sunlight into food

Which consumers eat only plants?

Herbivores

Omnivores

Carnivores

Other plants

Herbivores are called primary consumers because they are able to gain all their energy through digesting plants

In a food web, green plants are known as producers. Why is this?

Because plants are not carnivores

Because plants are the most efficient at transferring energy

Because plants create their own food from sunlight

Because plants are inefficient at transferring energy

Plants use photosynthesis to convert sunlight into food

Which of these species is a producer?

Polar bear

Algae

Shrimp

Cod

Producers are always green plants

Rose → aphid → ladybird. In this food chain, what is the ladybird?

The producer

A decomposer

The secondary consumer

The primary consumer

The rose is the producer, the aphid is the primary consumer and the ladybird is the secondary consumer

Which of these food chains is in the right order?

Shrimp → algae → cod → seal → polar bear

Algae → cod → shrimp → seal → polar bear

Polar bear → seal → cod → shrimp → algae

Algae → shrimp → cod → seal → polar bear

Arrows show the way in which energy is moving

What does a decomposer do in a food web?

They provide food for herbivores

They recycle nutrients by feeding on dead and decaying materials

They convert energy from sunlight into food

They create soil

Decomposers include earthworms, woodlice, fungi and bacteria, and represent the end of any food web because they feed on dead organisms

Which of the following support all life on Earth?

Insects

Mammals

Carnivores

Green plants

Because plants create their own food from sunlight, using photosynthesis, they are the only means of transferring energy from the Sun to all life on Earth

10.

What is an omnivore?

An omnivore eats only green plants

An omnivore is a top carnivore

An omnivore eats both plants and animals

An omnivore is a decomposer

Humans are omnivores

You can find more about this topic by visiting BBC Bitesize - What is a food chain?

Author: Sheri Smith

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